function check(iregister)
{
var patient=iregister.patientid.value;
var iprovider=iregister.iname.value;
var branch=iregister.branch.value;
var address=iregister.address.value;
var ocontact=iregister.ocontact.value;
var agent=iregister.aname.value;
var agentcontact=iregister.acontact.value;
var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
var mbno=/^([7-9]{1}[0-9]{9})$/;
if(patient == "") {
        inlineMsg('patientid','You must enter patient id.',2);
        return false;
    }
    if(patient.length<10 || patient.length>10)
        {
        inlineMsg('patientid','it should be excatly 10 characters',2);
        return false;
        }
        if(address == "") {
        inlineMsg('address','You must enter address.',2);
        return false;
    } 
    if(iprovider=="--select--")
    {
        inlineMsg('iname','please select',2);
        return false;
    }
    if(branch=="--select--")
    {
        inlineMsg('branch','please select',2);
        return false;
    }
     if(ocontact=="")
    {
        inlineMsg('ocontact','u must enter mobileno',2);
        return false;
    }
    if(!ocontact.match(mbno))
    {	
        inlineMsg('ocontact','u must enter valid mobileno',2);
        return false;
    }
    if(agent == "") {
        inlineMsg('aname','You must enter agent name.',2);
        return false;
    }    
     if(!agent.match(nameRegex)) {
        inlineMsg('aname','You must enter valid agent name.',2);
        return false;
    }
    if(agent.length < 6) {
        inlineMsg('aname','You must enter valid agent name.',2);
        return false;
    }
     if(agentcontact=="")
    {
        inlineMsg('acontact','u must enter mobileno',2);
        return false;
    }
    if(!agentcontact.match(mbno))
    {	
        inlineMsg('acontact','u must enter valid mobileno',2);
        return false;
    }
    
    
    return true;
}
var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
    var msg;
    var msgcontent;
    if(!document.getElementById('msg')) {
        msg = document.createElement('div');
        msg.id = 'msg';
        msgcontent = document.createElement('div');
        msgcontent.id = 'msgcontent';
        document.body.appendChild(msg);
        msg.appendChild(msgcontent);
        msg.style.filter = 'alpha(opacity=0)';
        msg.style.opacity = 0;
        msg.alpha = 0;
    } else {
        msg = document.getElementById('msg');
        msgcontent = document.getElementById('msgcontent');
    }
    msgcontent.innerHTML = string;
    msg.style.display = 'block';
    var msgheight = msg.offsetHeight;
    var targetdiv = document.getElementById(target);
    targetdiv.focus();
    var targetheight = targetdiv.offsetHeight;
    var targetwidth = targetdiv.offsetWidth;
    var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
    var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
    msg.style.top = topposition + 'px';
    msg.style.left = leftposition + 'px';
    clearInterval(msg.timer);
    msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
    if(!autohide) {
        autohide = MSGHIDE;  
    }
    window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
    var msg = document.getElementById('msg');
    if(!msg.timer) {
        msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
    }
}

// face the message box //
function fadeMsg(flag) {
    if(flag == null) {
        flag = 1;
    }
    var msg = document.getElementById('msg');
    var value;
    if(flag == 1) {
        value = msg.alpha + MSGSPEED;
    } else {
        value = msg.alpha - MSGSPEED;
    }
    msg.alpha = value;
    msg.style.opacity = (value / 100);
    msg.style.filter = 'alpha(opacity=' + value + ')';
    if(value >= 99) {
        clearInterval(msg.timer);
        msg.timer = null;
    } else if(value <= 1) {
        msg.style.display = "none";
        clearInterval(msg.timer);
    }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
    var left = 0;
    if(target.offsetParent) {
        while(1) {
            left += target.offsetLeft;
            if(!target.offsetParent) {
                break;
            }
            target = target.offsetParent;
        }
    } else if(target.x) {
        left += target.x;
    }
    return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
    var top = 0;
    if(target.offsetParent) {
        while(1) {
            top += target.offsetTop;
            if(!target.offsetParent) {
                break;
            }
            target = target.offsetParent;
        }
    } else if(target.y) {
        top += target.y;
    }
    return top;
}

// preload the arrow //
if(document.images) {
    arrow = new Image(7,80); 
    arrow.src = "msg_arrow.gif"; 
}